Iphone Dev：在同一个UIScrollView中添加两个UITableView

We have a situation where we are trying to add two UITableViews inside a single UIScrollView. This seemed to be working (the two UITableViews are displayed properly) BUT 1) the data in the second UITableView is always the same as the data in the first one 2) when clicking items in the second UITableView, we get an exception: "unrecognized selector sent to instance"We have a situation where we are trying to add